Refugee's picture

Polypody

Observed: 24th January 2012 By: RefugeeRefugee’s reputation in PlantsRefugee’s reputation in PlantsRefugee’s reputation in PlantsRefugee’s reputation in Plants
Polypody
dscf3130
dscf3170
dscf3172
dscf3179
dscf3202
dscf3200
Description:

Growing from a well rotted Ash or Acer log on in mature woodland. The soil is lime and may not allow it to grow from the ground.

Identifications
Species interactions

No interactions present.

Comments

moremoth's picture

Polypody

According to the Field Studies Council's Fern Guide, P. vulgare has blunt-ended pinnae with entire margins, and the lowest pair of pinnae are flat or weakly inflexed. Your pinnae are acute-ended and have serrations, and the lowest pair of pinnae are reflexed, like P. interjectum. But I'm no fern expert.

Bill Welch

Refugee's picture

Fronds

I had a look around and could not find much else that looks anything like it. It is not growing in the limestone soil but on a log that is so well rotted that i can't work out what tree it came from.

Refugee

Refugee's picture

Choice

The two of them are hard to tell apart. The leaf ends do vary in both according to comments on other specimens.

Refugee

Duxbury Rambler's picture

sori

Sori looks circular to me, which I would expect on vulgare, oval on the other two.

Refugee's picture

Two more found

I have found two more specimens about 200m from the original this time growing on moss covered limestone blocks. They all have round spore caps like Vulgare that are also rust colored too. I have added the other images from the north facing limestone cliff to the west of the original location.

Refugee